111 lines
2.3 KiB
C
111 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#define _GNU_SOURCE
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#include <fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/syscall.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <linux/genetlink.h>
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#include <linux/netlink.h>
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#include <linux/mqueue.h>
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#include "../kselftest_harness.h"
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static const struct {
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struct nlmsghdr nlhdr;
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struct genlmsghdr genlhdr;
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struct nlattr ahdr;
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__u16 val;
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__u16 pad;
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} dump_policies = {
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.nlhdr = {
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.nlmsg_len = sizeof(dump_policies),
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.nlmsg_type = GENL_ID_CTRL,
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.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_DUMP,
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.nlmsg_seq = 1,
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},
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.genlhdr = {
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.cmd = CTRL_CMD_GETPOLICY,
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.version = 2,
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},
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.ahdr = {
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.nla_len = 6,
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.nla_type = CTRL_ATTR_FAMILY_ID,
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},
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.val = GENL_ID_CTRL,
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.pad = 0,
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};
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// Sanity check for the test itself, make sure the dump doesn't fit in one msg
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TEST(test_sanity)
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{
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int netlink_sock;
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char buf[8192];
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ssize_t n;
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netlink_sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
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ASSERT_GE(netlink_sock, 0);
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n = send(netlink_sock, &dump_policies, sizeof(dump_policies), 0);
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ASSERT_EQ(n, sizeof(dump_policies));
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n = recv(netlink_sock, buf, sizeof(buf), MSG_DONTWAIT);
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ASSERT_GE(n, sizeof(struct nlmsghdr));
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n = recv(netlink_sock, buf, sizeof(buf), MSG_DONTWAIT);
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ASSERT_GE(n, sizeof(struct nlmsghdr));
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close(netlink_sock);
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}
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TEST(close_in_progress)
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{
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int netlink_sock;
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ssize_t n;
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netlink_sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
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ASSERT_GE(netlink_sock, 0);
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n = send(netlink_sock, &dump_policies, sizeof(dump_policies), 0);
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ASSERT_EQ(n, sizeof(dump_policies));
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close(netlink_sock);
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}
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TEST(close_with_ref)
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{
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char cookie[NOTIFY_COOKIE_LEN] = {};
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int netlink_sock, mq_fd;
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struct sigevent sigev;
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ssize_t n;
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netlink_sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
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ASSERT_GE(netlink_sock, 0);
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n = send(netlink_sock, &dump_policies, sizeof(dump_policies), 0);
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ASSERT_EQ(n, sizeof(dump_policies));
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mq_fd = syscall(__NR_mq_open, "sed", O_CREAT | O_WRONLY, 0600, 0);
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ASSERT_GE(mq_fd, 0);
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memset(&sigev, 0, sizeof(sigev));
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sigev.sigev_notify = SIGEV_THREAD;
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sigev.sigev_value.sival_ptr = cookie;
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sigev.sigev_signo = netlink_sock;
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syscall(__NR_mq_notify, mq_fd, &sigev);
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close(netlink_sock);
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// give mqueue time to fire
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usleep(100 * 1000);
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}
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TEST_HARNESS_MAIN
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